Initiating the Effective Unification of Black Hole Horizon Area and Entropy Quantization with Quasi-Normal Modes by C. Corda, S. H. Hendi, R. Katebi, N. O. Schmidt

“…Black hole (BH) area quantization may be the key to unlocking a unifying theory of quantum gravity (QG). Surmounting evidence in the field of BH research continues to support a horizon (surface) area with a discrete and uniformly spaced spectrum, but there is still no general agreement on the level spacing. …”
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Approximate symmetries and gravity by Sylvain Fichet, Prashant Saraswat

“…Such a proposal can be seen as part of the “swampland” program to constrain EFTs emerging from quantum gravity. Considering an EFT perspective, we formulate a con- jecture which requires the existence of operators violating global symmetry and places quantitative bounds on them. …”
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Density of states, black holes and the Emergent String Conjecture by Alek Bedroya, Rashmish K. Mishra, Max Wiesner

“…Abstract We study universal features of the density of one-particle states ρ(E) in weakly coupled theories of gravity at energies above the quantum gravity cutoff Λ, defined as the scale suppressing higher-derivative corrections to the Einstein-Hilbert action. …”
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Inflation models with Peccei–Quinn symmetry and axion kinetic misalignment by Hyun Min Lee, Adriana G. Menkara, Myeong-Jung Seong, Jun-Ho Song

“…Assuming that the PQ symmetry is explicitly violated in the scalar potential by quantum gravity effects, we show that a sufficiently large initial axion velocity can be obtained before the QCD phase transition while avoiding the axion quality problem. …”
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Quantum-Ordering Ambiguities in Weak Chern—Simons 4D Gravity and Metastability of the Condensate-Induced Inflation by Panagiotis Dorlis, Nick E. Mavromatos, Sotirios-Neilos Vlachos

“…We argue in favor of a physical importance of such imaginary parts, which we compute to second order in the GW (tensor) perturbations in the framework of a gauge-fixed effective Lagrangian, within a (mean field) weak-quantum-gravity-path-integral approach. We thus provide estimates of the inflation lifetime. …”
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Hawking-Page transition in 4D Einstein-Gauss-Bonnet gravity by Xiao-yan Hu, Yuan-zhang Cui, Wei Xu

“…These advancements hold promise for deepening insights into black hole thermodynamics in the framework of quantum gravity.…”
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End of the world brane dynamics in holographic 4d N $$ \mathcal{N} $$ = 4 SU(N) with 3d N $$ \mathcal{N} $$ = 2 boundary conditions by Jesús Huertas, Angel M. Uranga

“…We explore the interplay of bulk and boundary topological couplings and draw general lessons for the classification of cobordism defects of bulk quantum gravity theories in the swampland program.…”
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Modified Heisenberg Commutation Relations, Free Schrödinger Equations, Tunnel Effect and Its Connections with the Black–Scholes Equation by Mauricio Contreras González, Roberto Ortiz Herrera, José González Suárez

“…Further, because this random geometry is nothing more than gravity at the microscopic level, the Black–Scholes equation becomes a possible simple model for understanding quantum gravity.…”
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